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CS5155GDR16 Datenblatt(PDF) 1 Page - Cherry Semiconductor Corporation

Teilenummer CS5155GDR16
Bauteilbeschribung  CPU 5-Bit Synchronous Buck Controller
Download  14 Pages
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Hersteller  CHERRY [Cherry Semiconductor Corporation]
Direct Link  http://www.cherrycorp.com/
Logo CHERRY - Cherry Semiconductor Corporation

CS5155GDR16 Datenblatt(HTML) 1 Page - Cherry Semiconductor Corporation

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The CS5155 is a 5-bit synchronous
dual N-Channel buck controller. It
is designed to provide unprece-
dented transient response for
todayÕs demanding high-density,
high-speed logic. The regulator
operates using a proprietary control
method, which allows a 100ns
response time to load transients.
The CS5155 is designed to operate
over a 4.25-14V range (VCC) using
12V to power the IC and 5V as the
main supply for conversion.
The CS5155 is specifically designed
to power Pentium¨ II processors
and other high performance core
logic. It includes the following fea-
tures: on board, 5-bit DAC, short
circuit protection, 1.0% output tol-
erance, VCC monitor, and pro-
grammable soft start capability. The
CS5155 is backwards compatible
with the 4 bit CS-5150, allowing the
mother board designer the capabili-
ty of using either the CS-5150 or the
CS5155 with no change in layout.
The CS5155 is available in 16 pin
surface mount and DIP packages.
Features
s
Dual N-Channel Design
s
Excess of 1MHz Operation
s
100ns Transient Response
s
5-Bit DAC
s
Backward Compatible with
4 Bit CS-5150/5151 and
Adjustable CS-5120/5121
s
30ns Gate Rise/Fall Times
s
1% DAC Accuracy
s
5V & 12V Operation
s
Remote Sense
s
Programmable Soft Start
s
Lossless Short Circuit
Protection
s
VCC Monitor
s
25ns FET Nonoverlap Time
s
Adaptive Voltage
Positioning
s
V2ª Control Topology
s
Current Sharing
s
Overvoltage Protection
Package Options
CPU 5-Bit Synchronous Buck Controller
CS5155
Description
Application Diagram
1
VID0
VID1
VID2
VID3
SS
VID4
COFF
VFFB
VFB
COMP
LGnd
VCC1
VGATE(L)
PGnd
VGATE(H)
VCC2
16 Lead SO Narrow & PDIP
1
Switching Power Supply for core logic - Pentium¨ II processor
0.33
mF
VID0
VID1
VID2
VID3
VID0
VID1
VID2
VID3
VCC1
SS
CS5155
COFF
LGnd
VFB
VFFB
COMP
IRL3103
IRL3103
0.1
mF
12V
5V
2
mH
1.3V to 3.5V @ 13A
VCC2
VGATE(H)
VGATE(L)
PGnd
1200
mF/16V x 3
AlEl
3.3k
0.1
mF
1200
mF/16V x 5
AlEl
100pF
330pF
VID4
VID4
V2 is a trademark of Switch Power, Inc.
Pentium is a registered trademark of Intel Corporation.
Rev. 1/22/99
Cherry Semiconductor Corporation
2000 South County Trail, East Greenwich, RI 02818
Tel: (401)885-3600 Fax: (401)885-5786
Email: info@cherry-semi.com
Web Site: www.cherry-semi.com
A
Company
¨


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